Football helmet charm



FIG. 1 is an upper left front perspective view of a football helmet charm showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a right edge elevational view;

FIG. 5 is a left edge elevational view;

FIG. 6 is a top plan view; and

FIG. 7 is a bottom plan view. 

The ornamental design for football helmet charm, as shown and described. 